Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
dong cong » duong cong, dung cong, dang cong
khi sach » khoa sach, khau sach, khoe sach
cua dong » chua dong, cua cong, cua dang
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((khi sach) or (khi sac)) - hanh tranh cua dong cong ((dan than) OR (ban than)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((khi sach) OR (khi sac)) - hanh tranh cua dong cong ((dan than) OR (ban than)) cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((khi sach) or (khi sac)) - hanh tranh cua dong cong ((dan than) OR (ban than)) cap".
• Adding a wildcard symbol may retrieve word variants: doi ((khi sach) or (khi sac)) - hanh tranh cua dong cong ((dan than) OR (ban than)) cap*.